[test] Enable Andoid testing on more JS test suites

Bug: chromium:866862
Change-Id: Ib6c89d88344c2348de155fd54eafa03cf18ea88d
Reviewed-on: https://chromium-review.googlesource.com/1206631Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55674}

infra/testing/builders.pyl

@@ -39,7 +39,7 @@
       'os': 'Android',
     },
     'tests': [
-      {'name': 'mjsunit', 'variant': 'default', 'shards': 2},
+      {'name': 'd8testing', 'variant': 'default', 'shards': 2},
     ],
   },
   ##############################################################################

tools/testrunner/objects/testcase.py

@@ -332,6 +332,8 @@ class D8TestCase(TestCase):
 
   def _get_resources(self):
     """Returns the list of files needed by a test case."""
+    if not self._get_source_path():
+      return []
     result = set()
     to_check = [self._get_source_path()]
     # Recurse over all files until reaching a fixpoint.